Home / 18,957.18-28,397.71-9,440.83

Finding the Fourth Proportional to 18,957.18, 28,397.71 and 9,440.83

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Solution

The fourth proportional to 18,957.18, 28,397.71 and 9,440.83 is: 14,142.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,957.18 : 28,397.71 = 9,440.83 : x
  2. Step 2: Convert to fraction form
    18,957.18/28,397.71 = 9,440.83/x
  3. Step 3: Cross multiply
    18,957.18x = 28,397.71 × 9,440.83
  4. Step 4: Simplify right side
    18,957.18x = 268,097,857.90
  5. Step 5: Solve for x
    x = 268,097,857.90/18,957.18
  6. Step 6: Final answer
    x = 14,142.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.